Dry cell



c. P. DEIBEL.

DRY CELL Filed Deo. l5; 1924 CYRIL?. Domein, os msi-Wm consenta", osfz.-

CELL BATTERY meier, omo, .e oomonemonon onto.

l s, occasion sie@ neemt@ is sei-mi swiss e7..

. y M .To all wm t may concern:

Be it lilown that I, @mit P. Deinen, a citizen. of the United States,residing at Lakewood7 in tbe county of Cuyahoga and State of Ohio, haveinvented e certain .new

.and useful Improvement in Bry Cells, oit

which the following is a full, clear, end exact description, referencebeing; had to the accompanying' drawings.

This invention relates to improvements in the construction of dry cellsand it is applicable to cells of practically all sizes,

embracing those ranging from the smullen flashlight sizes to thestandard six inch size.

Among the lasliligl'it sizes are cells that' are beingl used extensivelyin the soncelled B batteries radio sets sind it is to the constructionof such batteries as these that my eiiiorts are especially directed.

Flashlight cells, for exemple, those used inY .B batteries, are' nowgenerell-f made by molding e. celte ot mix about e. carbon rod orpencily and Wrapping the seme in linen cloth about which e string iswound and tied to form what is referred to as the bobbin. This bobbin isthen placed as 'neeriy "centrally asiimited time and reasonable cerewill permitwitlim s zine cup, 1n the bottom. of which there 1s usually opeper disli to keep the mix from Contacting#y with the Zine bottom. Thiscell is known 1n tbe trede as the bag type cell.

A qvery common fault in cells of this coustruetion is that the bobbin7being not een centrally arranged in the cup, contacts with the side'Wall, thus rendering the cell internelly defective, and ons suoli cellin. s, B battery of fifteen cells cause the entire betn teigy to becorrespondingly defective. The battery es ewliole is only as goed as itsweeku est cell. Furthermore, when the bottom. vof the cup is covered by.e paper disk, no use is obtained from tliebottom end thellife of thecell is proportionately shortened. CellsV constructed as'described cannot be liermeti# v'cally sealed because internal pressure due to thegeneration and expansion of ge/ses' Within the cell will blow the seal,aud Atoot being bermetricelly sealed, air is permitted topess in and outas the temperature duetuetes this condition lis very demaging to thecell. Also, expensive low resistance materials have to be used in eel14o nisidein order that the cell may propJ .tion under liesyy currentdrains. account of t. le feet that the mix is not telnped di' compressedand 'thus rendered sulliciently dense ,to re duce internal resistance bythis ineens. i Aside from 'these inherent defects, cells constructed asbove set fort'noen not/be en'tirely redueed to automatic manufacture.The seriousness of this Aobjectimil liesbeen increased many fold sincethe advent oi the radio. #Vith tile dementi as it is to-day enythingelecting-an increase in production. end s. decrease Vin cost isenthusiastically Welcomed by the industry.

The primarypurpose of my invention is to so construct o. dry cell thatit may be made entirely by automatic machinery tlius greatly increasingthe yolume, and reducing l concurrently herewith by l/Vlter G. Waittmyself, end titled Method of producing dry cells.

Further objfeots of my present invention are to provide e highlyeilioient yet ooznpar @tively inexpensive dry cell having along sbellife as well es s long active life. Factors contributing to theseresults are the use of e. maximum amount oit mix in a cup of given sizeand the availability of tlieybottom of the cup es a part of the. activeagg-ent or anode', no disk' being Irequired in the bottom oli the cupaccording to my construction. l employ e, cup lining of suitableabsorbent paper, folded across-the bottom of the cupin place of theusuel peper' disk. This insures 4 against the mix contacting with thecupV at reduces l internal resisieuce, permitting s A cheaper grade ofineteifiels to be used than is practical were mix not highlycompressed.' My oeil is known in' the trede es the non-beg type cell asdistinguished from the y lieg type cell lier-eiubeforc referred to. K uy y l y .5

further. objootis "to provide a, hermit applied to the mix cake andhaving its rinr fitted within the open endv of the lining, tbe rim ofthe washer and seid lining terminating' in approximately the same planeand spaced inwardly e suitable. distance from the4 open end of tbe cup,n second washer Within the cup and having its edge portion injuxtaposition to the rim of the first mentioned Washer and the end ofthe lining, sind sealingl material closing the `Cup above the secndmentioned Washer.

4. A'dry' cell of the non-bag type construction' comprising ncylindrical cup, a lin.-

ing of tough absorbent paper,-earrying n quantity of paste on its outersrface and Wound-about in one or more layers to iitthe interior of alleCup, the inner end of the lin.- ing being folded inwardly across thebottom of the cup, a cake of depolarizing mix, a carbon rod extendingcentrally through seid.

cake and protruding beyond one end izliereof, said cake being highlycompressed Within the liner; cup, the top edge of the lining beingspaced inwardly e suitable distance from the oorresponding edge of thecup, end the edia centl end 1 of the min cake being spaced inwardly amaterial distance from the top'edge of the lining,

raged Within the surrounding portion of the lining, the top of seid rimand por tion terminating in approximately the sanne plane7V a secondWasher Within the top of tine cup and having its edge in juxteoositionto the top edges of vthe lining end'dished Washer, and sealing n'mterinlabove the second mentioned Washer and hermetioally eenling' the cup, theliningY and tile-paste lbeing permeated Witiieleetrolytie solution.

a (lished Weeber applied to the y end of the mix anke and kening its runenM` In testimony whereof, l; hereunto affix my signature.

` CYRL EEBEL

